Patents by Inventor Myron S. Simon
Myron S. Simon has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 6103912Abstract: A novel class of bridged indicator dyes is disclosed which possess absorption in the infrared region of the electromagnetic spectrum. These bridged indicator dyes are useful as light-absorbing, pH-sensitive optical filter agents in diffusion transfer photographic processes adapted to be performed in the presence of ambient light and to diffusion transfer products useful in such processes. These indicator dyes will also find utility in titrations and other analytical techniques and products where pH-sensitive indicator dyes are employed and absorption of infrared is useful.Type: GrantFiled: March 31, 1993Date of Patent: August 15, 2000Assignee: Polaroid CorporationInventors: Charles E. Jandrue, Sr., Marcis M. Kampe, Myron S. Simon, David P. Waller, David C. Whritenour
-
Patent number: 5399709Abstract: A novel class of N-substituted triarylmethane sulfonamides is provided which undergo reversible oxidation into colored form and reversible reduction of the oxidized form into colorless form. The N-substituted triarylmethane sulfonamides can be represented by the formulae: ##STR1## wherein B is a carbocyclic ring or rings; T is a 5- or 6-membered ring; Y is a moiety selected from ##STR2## wherein E, positioned ortho or para to said --OH group, is selected from --OH, --NH.sub.2, --NHR', --NR'R" and --NHSO.sub.Type: GrantFiled: June 11, 1993Date of Patent: March 21, 1995Assignee: Polaroid CorporationInventors: Myron S. Simon, Marcis M. Kampe, David P. Waller
-
Patent number: 5332654Abstract: A novel class of N-substituted triarylmethane sulfonamides is provided which undergo reversible oxidation into colored form and reversible reduction of the oxidized form into colorless form. Preferred embodiments comprise xanthene sulfonamides having N-aryl substituents, e.g., hydroquinone substituents. These compounds possess redox potentials ranging between about +200 to -500 millivolts and thus are useful as dyes for producing photographic, photothermographic, thermal, and pressure-induced images, as well as being useful as redox indicators in a wide variety of biological and chemical reactions.Type: GrantFiled: June 11, 1993Date of Patent: July 26, 1994Assignee: Polaroid CorporationInventors: Myron S. Simon, Marcis M. Kampe, David P. Waller
-
Patent number: 5258279Abstract: A novel class of N-substituted triarylmethane sulfonamides is provided which undergo reversible oxidation into colored form and reversible reduction of the oxidized form into colorless form. Preferred embodiments comprise xanthene sulfonamides having N-aryl substituents, e.g., hydroquinone substituents. These compounds possess redox potentials ranging between about +200 to -500 millivolts and thus are useful as dyes for producing photographic, photothermographic, thermal, and pressure-induced images, as well as being useful as redox indicators in a wide variety of biological and chemical reactions.Type: GrantFiled: May 31, 1991Date of Patent: November 2, 1993Assignee: Polaroid CorporationInventors: Myron S. Simon, Marcis M. Kampe, David P. Waller
-
Patent number: 5244771Abstract: A novel class of bridged indicator dyes is disclosed which possess absorption in the infrared region of the electromagnetic spectrum. These bridged indicator dyes are useful as light-absorbing, pH-sensitive optical filter agents in diffusion transfer photographic processes adapted to be performed in the presence of ambient light and to diffusion transfer products useful in such processes. These indicator dyes will also find utility in titrations and other analytical techniques and products where pH-sensitive indicator dyes are employed and absorption of infrared is useful.Type: GrantFiled: August 20, 1991Date of Patent: September 14, 1993Assignee: Polaroid CorporationInventors: Charles E. Jandrue, Sr., Marcis M. Kampe, Myron S. Simon, David P. Waller, David C. Whritenour
-
Patent number: 4886733Abstract: This invention relates to diffusion transfer photographic processes adapted to be performed in the presence of ambient light and to diffusion transfer products useful in such processes wherein unexpectedly enhanced opacification in the red and near infrared region of the visible spectrum is achieved by employing phenanthrol/carboxynaphthol phthaleins as the light-absorbing, pH-sensitive optical filter agent for the longer wavelength region of the visible spectrum.Type: GrantFiled: October 3, 1988Date of Patent: December 12, 1989Assignee: Polaroid CorporationInventor: Myron S. Simon
-
Patent number: 4794067Abstract: Copolymeric mordants coatable from water into copolymeric mordant layers for photographic products and processes are disclosed. The copolymeric mordants comprise polymerized repeating units from first and second polymerizable vinylbenzyl quaternary ammonium compounds (the first polymerizable compound, if homopolymerized, providing a water-soluble homopolymer and the second polymerizable compound being a micelle-forming compound which, if homopolymerized, forms a water-insoluble homopolymer). The copolymeric mordants are coatable to image-receiving layers for the mordanting of dyes in photographic products and processes.Type: GrantFiled: November 23, 1987Date of Patent: December 27, 1988Assignee: Polaroid Corporation, Patent Dept.Inventors: J. Michael Grasshoff, Myron S. Simon
-
Patent number: 4656286Abstract: There are disclosed certain aminoethanethiols, and salts thereof, and certain thiazolidines which are made therefrom. The compounds are useful as intermediates in the synthesis of photographic image dye-providing materials.Type: GrantFiled: May 23, 1986Date of Patent: April 7, 1987Assignee: Polaroid Corporation, Patent Dept.Inventors: Paul T. MacGregor, Myron S. Simon
-
Patent number: 4636568Abstract: There are disclosed certain aminoether compounds which are useful as intermediates in the preparation of photographic image dye providing materials. The aminoethers are represented either by the formula ##STR1## wherein R is hydrogen or an alcohol protecting group and R.sub.1 is hydrogen, alkyl or aralkyl such as benzyl or phenethyl; or the formula ##STR2## wherein R.sub.2 and R.sub.3 are alkyl having from 1 to 6 carbon atoms or R.sub.2 and R.sub.3 together represent the carbon atoms necessary to form, together with the oxygen atoms to which they are bonded and >CH, a five or six member saturated heterocyclic moiety which may include substituted rings and fused rings.Type: GrantFiled: August 27, 1984Date of Patent: January 13, 1987Assignee: Polaroid CorporationInventors: Myron S. Simon, David P. Waller
-
Patent number: 4631344Abstract: Photographic products and processes for the imagewise generation of a dye from a color shifted dye precursor of a preformed image dye, said precursor having at least one ##STR1## group, wherein R is hydrogen, alkyl, provided that the .alpha.-carbon does not have a hydrogen atom attached thereto, aryl such as phenyl or substituted phenyl, e.g. p-nitrophenyl, or heterocyclic such as pyridine; R.sub.1 -R.sub.6 are hydrogen, alkyl, preferably having from 1 to 6 carbon atoms, or aryl; n is 0 or 1; and T is a moiety containing a thiazolidin-2-yl group which upon silver-assisted cleavage of said thiazolidin-2-yl group results in the formation of a ##STR2## group, which may be protonated under the reaction conditions, followed by cleavage of said ##STR3## which cleavage is anchimerically assisted or accelerated by said ##STR4## to provide after protonation, an ##STR5## group in a dye chromophore. In a preferred embodiment the precursor is a substantially colorless compound.Type: GrantFiled: April 29, 1985Date of Patent: December 23, 1986Assignee: Polaroid CorporationInventors: Myron S. Simon, David P. Waller
-
Patent number: 4535051Abstract: Photographic products and processes for the imagewise generation of a dye from a color shifted dye precursor of a preformed image dye, said precursor having at least one ##STR1## group, wherein R is hydrogen, alkyl, provided that the .alpha.- carbon does not have a hydrogen atom attached thereto, aryl such as phenyl or substituted phenyl, e.g. p-nitrophenyl, or heterocyclic such as pyridine; R.sub.1 -R.sub.6 are hydrogen, alkyl, preferably having from 1 to 6 carbon atoms, or aryl; n is 0 or 1; and T is a moiety containing a thiazolidin-2-yl group which upon silver-assisted cleavage of said thiazolidin-2-yl group results in the formation of a ##STR2## group, which may be protonated under the reaction conditions, followed by cleavage of said ##STR3## which cleavage is anchimerically assisted or accelerated by said ##STR4## to provide after protonation, an ##STR5## group in a dye chromophore. In a preferred embodiment the precursor is a substantially colorless compound.Type: GrantFiled: August 27, 1984Date of Patent: August 13, 1985Assignee: Polaroid CorporationInventors: Myron S. Simon, David P. Waller
-
Patent number: 4336387Abstract: This invention is concerned with certain 3-(thiazolidin-2'-yl)-substituted phenyl sulfonyl chlorides which find utility as intermediates in the preparation of photographic image dye-providing materials.Type: GrantFiled: March 2, 1981Date of Patent: June 22, 1982Assignee: Polaroid CorporationInventor: Myron S. Simon
-
Patent number: 3944569Abstract: This invention relates to a class of phthalein indicator dyes useful as optical filter agents in photographic processes to protect a selectively exposed photosensitive material from further exposure during processing in the presence of incident light. Such dyes comprise 3,3-disubstituted phthalides and 3,3-disubstituted naphthalides wherein the 3,3 substituents are p-hydroxy carbocyclic aryl radicals wherein one or both of the radicals possess a --CH.sub.2 --NRR' group ortho to the p-hydroxy group and the --CH.sub.2 --NRR' group(s) is capable of rendering the indicator dye substantially non-diffusible in aqueous solution.Type: GrantFiled: August 27, 1973Date of Patent: March 16, 1976Assignee: Polaroid CorporationInventors: Stanley M. Bloom, Elbert M. Idelson, Myron S. Simon, David P. Waller